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// Copyright 2017 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "dawn/native/opengl/PersistentPipelineStateGL.h"
#include "dawn/native/opengl/OpenGLFunctions.h"
namespace dawn::native::opengl {
void PersistentPipelineState::SetDefaultState(const OpenGLFunctions& gl) {
CallGLStencilFunc(gl);
}
void PersistentPipelineState::SetStencilFuncsAndMask(const OpenGLFunctions& gl,
GLenum stencilBackCompareFunction,
GLenum stencilFrontCompareFunction,
uint32_t stencilReadMask) {
if (mStencilBackCompareFunction == stencilBackCompareFunction &&
mStencilFrontCompareFunction == stencilFrontCompareFunction &&
mStencilReadMask == stencilReadMask) {
return;
}
mStencilBackCompareFunction = stencilBackCompareFunction;
mStencilFrontCompareFunction = stencilFrontCompareFunction;
mStencilReadMask = stencilReadMask;
CallGLStencilFunc(gl);
}
void PersistentPipelineState::SetStencilReference(const OpenGLFunctions& gl,
uint32_t stencilReference) {
if (mStencilReference == stencilReference) {
return;
}
mStencilReference = stencilReference;
CallGLStencilFunc(gl);
}
void PersistentPipelineState::CallGLStencilFunc(const OpenGLFunctions& gl) {
gl.StencilFuncSeparate(GL_BACK, mStencilBackCompareFunction, mStencilReference,
mStencilReadMask);
gl.StencilFuncSeparate(GL_FRONT, mStencilFrontCompareFunction, mStencilReference,
mStencilReadMask);
}
} // namespace dawn::native::opengl